Mine detail: Tybo Mine

Previously called '2g ShaftHales Shaft'

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Location

Lat / long:

38.36855, -116.40312

Resource(M)

Primary:	Lead, Zinc, Gold, Silver
Tertiary:	Copper, Arsenic, Iron, Manganese
Ore:	Chalcopyrite, Galena, Pyrrhotite, Sphalerite
Orebody form:	TABULAR
Discovery year:	1869

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
First production started:	1872

Geology

Host rock:	Hales Limestone
Host type:	Limestone
Associated type:	Rhyodacite
Structure:	The 2g Fault, Uncle Sam Fault, Dimick, Fault, And Gilmore Fault.Post-Mineral Faulting With Considerable Offset Of Ore Zones.
Alteration processes:	Oxidation Of Ore Down To The 710 Ft Level.Pervasive Sericitization,Pyritization, And Calcite Replacement Of Host Rock And Silicification Of Limestone Adjacent To Ore. Also Some Propylitization.

References

MRDS	M231833
DEP	10044417
Reference	{Deposit:: FERGUSON, H.G., 1933, GEOLOGY OF THE TYBO DISTRICT: NEV. BUR. OF MINES, BULL. 20, P. 42-48, 52-56.}{Deposit:: QUINLIVAN, W.D. AND ROGERS, C.L., 1974, GEOLOGIC MAP OF THE TYBO QUAD: USGS MAP I-821}{Deposit:: KRAL, V.E., 1951, MINERAL RESOURCES OF NYE CO.: NEV. BUR. OF MINES AND GEOL., BULL. 50, P. 192}{Deposit:: THE MINING RECORD, JULY 8, 1981.}{Deposit:: STATE INSPECTOR OF MINES, 1982, DIRECTORY OF MINING OPERATIONS ACTIVE IN NEVADA DURING CALENDAR YEAR 1981.}{Production:: FERGUSON, 1933, P. 43-44.}
Reporter	Wong, George (Roberts, Ralph), La Pointe, D.D. (Tingley, J.V.)